Yuta Katayama

@yutkat

Role: Programmer / Editor: Neovim / Shell: zsh / Terminal: WezTerm / OS: NixOS, ArchLinux(Hyprland), Android / PC:Thinkpad, Lemur Pro, HHKB Hybrid , GameBall

Commit activity

10 commits in the last 30 days

longest streak 4 days

338 / 400 XP62 XP to maintainer

yutkat

yutkat GitHub followers GitHub stars

Gitstar ranking committers.top rank Followed rank in Japan

X followers X posts Followers Posts Reddit karma Stack Overflow reputation

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homepage x zenn qiita dev.to stackoverflow yutkat yutkat

Development Environment

Role Programmer
Editor Neovim
Shell zsh, nushell
AI Agent Codex, ClaudeCode
Terminal WezTerm
OS NixOS, ArchLinux(Hyprland)

Recent Activities

github stats github stats

Profile details

Contribution graph

Languages

Repos per language Most commit language Top languages

OSS Insight

Dashboard stats of @yutkat @yutkat's Recent Work - Last 28 days

Metrics

GitHub Metrics

Metrics

Wakatime Analysis

Other Statics

Code Time

AI Code Time

Lines of code

🐱 My GitHub Data

πŸ“¦ 261.6 kB Used in GitHub's Storage

πŸ† 2,240 Contributions in the Year 2026

🚫 Not Opted to Hire

πŸ“œ 134 Public Repositories

πŸ”‘ 5 Private Repositories

I'm an Early 🐀

🌞 Morning                10753 commits       β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   25.73 % 
πŸŒ† Daytime                14449 commits       β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   34.57 % 
πŸŒƒ Evening                10742 commits       β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   25.70 % 
πŸŒ™ Night                  5850 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   14.00 % 

πŸ“… I'm Most Productive on Tuesday

Monday                   6645 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   15.90 % 
Tuesday                  7004 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   16.76 % 
Wednesday                6786 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   16.24 % 
Thursday                 6713 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   16.06 % 
Friday                   6192 commits        β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   14.82 % 
Saturday                 3999 commits        β–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   09.57 % 
Sunday                   4455 commits        β–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   10.66 % 

πŸ“Š This Week I Spent My Time On

πŸ•‘οΈŽ Time Zone: Asia/Tokyo

πŸ’¬ Programming Languages: 
Other                    34 hrs 7 mins       β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘   87.36 % 
Markdown                 2 hrs 39 mins       β–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   06.79 % 
Python                   53 mins             β–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   02.27 % 
sh                       21 mins             β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   00.93 % 
Nix                      17 mins             β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   00.74 % 

πŸ”₯ Editors: 
Chrome                   35 hrs 52 mins      β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘   91.85 % 
Claude Code              2 hrs 59 mins       β–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   07.67 % 
Neovim                   11 mins             β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   00.47 % 

πŸ’» Operating System: 
Linux                    39 hrs 3 mins       β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ   100.00 % 

πŸ€– AI Coding This Week

⏱ AI Coding Time: 3 hrs 7 mins (8.02%)

✍️ 4,255 lines written by AI, 0 lines written by hand (100.0% AI-written)

πŸ”€ 2,739,597 Input Tokens, 449,059 Output Tokens

πŸ’΅ $31.17 Estimated AI Cost This Week

🧠 15 AI Sessions, 104 AI Prompts

Opus                     4,296 lines         β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆ   100.00 % 
Sonnet                   0 lines             β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   00.00 % 

πŸ”Ž AI Coding Insights:
πŸ€– AI-Driven β€” 100.0% of written lines came from AI
πŸ“š Verbose Prompter β€” average 2,524 characters per prompt
πŸ” Iterative Prompter β€” average 7 prompts per session
πŸš€ High AI Trust β€” 0.0% of changed lines were hand-edited

I Mostly Code in Lua

Lua                      25 repos            β–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   40.32 % 
Shell                    10 repos            β–ˆβ–ˆβ–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   16.13 % 
Nushell                  6 repos             β–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   09.68 % 
Python                   6 repos             β–ˆβ–ˆβ–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   09.68 % 
Nix                      1 repo              β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘β–‘   01.61 % 

Timeline

Lines of Code chart

Last Updated on 08/11/2026 23:11:29 UTC

GitHub Follower History

xychart-beta
  title "GitHub Followers History"
  x-axis ["23-06","23-08","23-10","23-12","24-03","24-05","24-07","24-10","24-12","25-03","25-06","25-09","25-12","26-03","26-09"]
  y-axis "Followers"
  line [342,356,376,389,404,437,460,497,521,547,568,599,628,648,660]
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